CakePHP的模型关联

我是CakePHP新手，在弄清楚如何建立模型关联方面有点困难

假设我有3个表：付款、预订和预订详细信息，包括以下数据

table reservations
id  |  confirmation_number   |   guest_id
1         123                        1

table reservation_details -a reservation can have multiple entries (multiple rooms)
id  |  reservation_id   |   date     |  time   | room_id    |   rate
 2           1            2014-18-04    13:00        1           9.99
 3           1            2014-18-04    13:00        2           4.99

table payments - many payments for one reservation can be made
id  |   reservation_id  |   payment_amount    |  payment_type   |   guest_id
 4            1                    14.98                Cash             1

这是我的模型

 //Reservation model
 public $hasMany = array('ReservationDetail', 'Payment');

 //ReservationDetail model
 public $belongsTo = array('Reservation');

 //Payment model
 public $belongsTo = array('Reservation');
 public $hasMany = array('ReservationDetail' => array('foreignKey' => 'reservation_id')); 

我试图做的是能够搜索付款，它将返回相应的预订和该付款的预订详细信息。因此，它将从共享相同预订id的预订详细信息中获取任何记录。现在，将返回预订，但预订详细信息将返回空

以下搜索返回来自付款和预订的信息，但返回来自预订详细信息的空数组

$payment = $this->Payment->find('all',array(
                                      'conditions' => array(
                                         'Payment.guest_id' => '1'
                                        )
                                ));

我几乎可以肯定，它正在加入payments.id=payments.reservation\u id而不是payments.reservation\u id=reservation\u details.reservation\u id上的reservation\u details表。当我手动将payments.id更改为1（reservation\u id值）时，将返回reservation\u详细信息。

我相信我试图实现的MySQL查询应该是

SELECT reservations.*, reservation_details.*, payments.* from payments
INNER JOIN reservations on reservations.id = payments.reservation_id
INNER JOIN reservation_details on reservation_details.reservation_id = payments.reservation_ID
WHERE payments.guest_id = '1'

Payment.php 将可包含的行为添加为-

public $actsAs = array('Containable');

PaymentsController.php

---

谢谢！很好用！

$payments = $this->Payment->find('all', array(
                                            'conditions' => array(
                                                'Payment.guest_id' => '1'
                                            ),
                                            'contain' => array(
                                                'Reservation' => array(
                                                    'ReservationDetail'
                                                )
                                            )

));

debug($payments);